setup for rank change page

ui/src/router/index.js

@@ -1,12 +1,14 @@
 import { createRouter, createWebHistory } from 'vue-router'
 import ManageApplications from '@/pages/ManageApplications.vue'
 import Application from '@/pages/Application.vue'
+import RankChange from '@/pages/RankChange.vue'
 
 const router = createRouter({
   history: createWebHistory(import.meta.env.BASE_URL),
   routes: [
     { path: '/applications', component: ManageApplications },
     { path: '/applications/:id', component: Application },
+    { path: '/changeRank', component: RankChange },
   ]
 
 })